ProSciTech retains a large stock of apertures for electron microscopes. Except for apertures made from very thin materials, platinum and molybdenum apertures are counter-bored to minimise the aperture passage and hence contamination rates.All of these apertures are made by the world's most experienced manufacturer, who pioneered aperture manufacturing for the first commercial electron microscopes.

Listed disk apertures are usually available ex our stock. Unlisted disk apertures are available (within six weeks) on request, but for these a minimum order of 10 apertures applies. If you have a regular requirement for an unlisted aperture, please advise; we will consider adding this to our range.

For Jeol electron microscopes

OD = outer diameter, T = thickness.

MAP8X25P-0750

Disc aperture, OD8.0mm, T0.25mm, hole 750µm, Pt

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MAP8X25P-1000

Disc aperture, OD8.0mm, T0.25mm, hole 1000µm, Pt

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OBSOLETE APERTURES

Apertures in the following five groups were for long obsolete electron microscopes, and they all are of different disk sizes. These apertures may be used for other scientific purposes. They are sold well below cost price - our loss may be your gain.

OD = outer diameter, T = thickness.1.85mm DISC APERTURE

MAP185X10P-0100

Disc aperture, OD1.85mm, T0.10mm, hole 100µm, Pt

15% DISCOUNT FOR 1

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OD = outer diameter, T = thickness.

MAP4X20P-0100

Disc aperture, OD4.0mm, T0.20mm, hole 100µm, Pt

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MAP4X20P-0200

Disc aperture, OD4.0mm, T0.20mm, hole 200µm, Pt

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OD = outer diameter, T = thickness.

MAP63X125M-0150

Disc aperture, OD6.3mm, T0.125mm, hole 150µm, Mo

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MAP63X125M-0200

Disc aperture, OD6.3mm, T0.125mm, hole 200µm, Mo

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MAP63X125P-0200

Disc aperture, OD6.3mm, T0.125mm, hole 200µm, Pt

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MAP63X20M-0100

Disc aperture, OD6.3mm, T0.20mm, hole 100µm, Mo

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MAP63X20M-0400

Disc aperture, OD6.3mm, T0.20mm, hole 400µm, Mo

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OD = outer diameter, T = thickness.

MAP127X20M-1000

Disc aperture, OD12.7mm, T0.20mm, hole 1000µm, Mo

15% DISCOUNT FOR 1

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APERTURE STRIPS

A full range of molybdenum and platinum aperture strips, with various hole size combinations, is available for all electron microscopes.

These apertures are of excellent quality and well priced. All standard strip apertures are listed in our price link. Special strips with holes down to 5um, or strips with more than four holes, or in other metals are available on request. We don't stock aperture strips, but they are available within two to six weeks from ordering.